PROBLEM TO BE SOLVED: To provide a syringe rotation device which can keep the concentration of beads for vascular embolus in a contrast medium stored in a syringe uniform, without troubling an operator.SOLUTION: A syringe rotation device 100 comprises: a syringe body holding base 110 which holds a syringe body 1A so as to be rotatable around a shaft CL and a rotation driving mechanism which is provided at the syringe body holding base 110 to rotate the syringe body 1A and a piston 1B around the shaft CL.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT